* [Bug tree-optimization/114883] [14 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
@ 2024-04-29 4:44 ` pinskia at gcc dot gnu.org
2024-04-29 4:45 ` [Bug tree-optimization/114883] [14/15 " pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2024-04-29 4:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114883
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|521.wrf_r ICE with -O2 |[14 Regression] 521.wrf_r
|-march=sapphirerapids |ICE with -O2
|-fvect-cost-model=cheap |-march=sapphirerapids
| |-fvect-cost-model=cheap
Keywords| |ice-on-valid-code
Target Milestone|--- |14.0
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
2024-04-29 4:44 ` [Bug tree-optimization/114883] [14 Regression] " pinskia at gcc dot gnu.org
@ 2024-04-29 4:45 ` pinskia at gcc dot gnu.org
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From: pinskia at gcc dot gnu.org @ 2024-04-29 4:45 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Can you reduce the fortran code down for the ICE? It should not be hard, you
can use delta even.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
2024-04-29 4:44 ` [Bug tree-optimization/114883] [14 Regression] " pinskia at gcc dot gnu.org
2024-04-29 4:45 ` [Bug tree-optimization/114883] [14/15 " pinskia at gcc dot gnu.org
@ 2024-04-29 4:52 ` liuhongt at gcc dot gnu.org
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To: gcc-bugs
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--- Comment #2 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> Can you reduce the fortran code down for the ICE? It should not be hard, you
> can use delta even.
Let me try.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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To: gcc-bugs
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--- Comment #3 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
Created attachment 58066
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58066&action=edit
reproduced testcase
gfortran -O2 -march=x86-64-v4 -fvect-cost-model=cheap.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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To: gcc-bugs
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--- Comment #4 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index a6cf0a5546c..ae6abe00f3e 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -8505,7 +8505,8 @@ vect_transform_reduction (loop_vec_info loop_vinfo,
{
gcc_assert (code == IFN_COND_ADD || code == IFN_COND_SUB
|| code == IFN_COND_MUL || code == IFN_COND_AND
- || code == IFN_COND_IOR || code == IFN_COND_XOR);
+ || code == IFN_COND_IOR || code == IFN_COND_XOR
+ || code == IFN_COND_MIN);
gcc_assert (op.num_ops == 4
&& (op.ops[reduc_index]
== op.ops[internal_fn_else_index ((internal_fn) code)]));
Could fix the ICE.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114883
--- Comment #5 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
(In reply to Hongtao Liu from comment #4)
> diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
> index a6cf0a5546c..ae6abe00f3e 100644
> --- a/gcc/tree-vect-loop.cc
> +++ b/gcc/tree-vect-loop.cc
> @@ -8505,7 +8505,8 @@ vect_transform_reduction (loop_vec_info loop_vinfo,
> {
> gcc_assert (code == IFN_COND_ADD || code == IFN_COND_SUB
> || code == IFN_COND_MUL || code == IFN_COND_AND
> - || code == IFN_COND_IOR || code == IFN_COND_XOR);
> + || code == IFN_COND_IOR || code == IFN_COND_XOR
> + || code == IFN_COND_MIN);
> gcc_assert (op.num_ops == 4
> && (op.ops[reduc_index]
> == op.ops[internal_fn_else_index ((internal_fn)
> code)]));
>
> Could fix the ICE.
Generate code as:
74 vect__38.89_332 = {_289, _295, _301, _307, _313, _319, _325, _331};
475 vect__39.90_333 = vect__36.85_228 * vect__38.88_283;
476 vect__39.90_334 = vect__36.85_229 * vect__38.89_332;
477 vect_tinv_80.91_335 = .FMA (vect__33.78_194, vect__32.75_211,
vect__39.90_333);
478 vect_tinv_80.91_336 = .FMA (vect__33.79_107, vect__32.75_207,
vect__39.90_334);
479 mask__217.92_338 = vect_tinv_80.91_335 > {
9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7, 9.999999974752\
427078783512115478515625e-7, 9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7, 9.9999999747524270787835121154\
78515625e-7 };
480 mask__217.92_339 = vect_tinv_80.91_336 > {
9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7, 9.999999974752\
427078783512115478515625e-7, 9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7,
9.999999974752427078783512115478515625e-7, 9.9999999747524270787835121154\
78515625e-7 };
481 vect_dtt_84.93_342 = .COND_RDIV (mask__217.92_338, { 1.0e+0, 1.0e+0,
1.0e+0, 1.0e+0, 1.0e+0, 1.0e+0, 1.0e+0, 1.0e+0 }, vect_tinv_80.91_335, { 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 });
482 vect_dtt_84.93_343 = .COND_RDIV (mask__217.92_339, { 1.0e+0, 1.0e+0,
1.0e+0, 1.0e+0, 1.0e+0, 1.0e+0, 1.0e+0, 1.0e+0 }, vect_tinv_80.91_336, { 0.0,
0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 });
483 vect_M.94_344 = .COND_MIN (mask__217.92_338, vect_dtmin_119.64_128,
vect_dtt_84.93_342, vect_dtt_84.93_342);
484 vect_M.94_345 = .COND_MIN (mask__217.92_339, vect_dtt_84.93_343,
vect_M.94_344, vect_dtt_84.93_343);
485 ivtmp.102_164 = ivtmp.102_119 + 128;
486 ivtmp.105_196 = ivtmp.105_193 + 128;
487 ivtmp.109_136 = ivtmp.109_177 + 128;
488 if (_118 == ivtmp.102_164)
489 goto <bb 13>; [36.35%]
490 else
491 goto <bb 12>; [63.65%]
492
493 <bb 13> [local count: 54066899]:
494 _347 = .REDUC_MIN (vect_M.94_345);
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
` (5 preceding siblings ...)
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From: jakub at gcc dot gnu.org @ 2024-04-29 17:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114883
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Hongtao Liu from comment #4)
> diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
> index a6cf0a5546c..ae6abe00f3e 100644
> --- a/gcc/tree-vect-loop.cc
> +++ b/gcc/tree-vect-loop.cc
> @@ -8505,7 +8505,8 @@ vect_transform_reduction (loop_vec_info loop_vinfo,
> {
> gcc_assert (code == IFN_COND_ADD || code == IFN_COND_SUB
> || code == IFN_COND_MUL || code == IFN_COND_AND
> - || code == IFN_COND_IOR || code == IFN_COND_XOR);
> + || code == IFN_COND_IOR || code == IFN_COND_XOR
> + || code == IFN_COND_MIN);
> gcc_assert (op.num_ops == 4
> && (op.ops[reduc_index]
> == op.ops[internal_fn_else_index ((internal_fn)
> code)]));
>
> Could fix the ICE.
Why IFN_COND_MIN and not IFN_COND_MAX?
What about other binary cond_fns? I see
DIV/MOD/RDIV/COPYSIGN/FMIN/FMAX/SHL/SHR.
Though, SHL/SHR/COPYSIGN/DIV/MOD/RDIV aren't commutative nor associative, dunno
about
if FMIN/FMAX could trigger. But certainly IFN_COND_MAX should be handled next
to IFN_COND_MIN.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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From: jakub at gcc dot gnu.org @ 2024-04-29 17:41 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Slightly more reduced testcase:
subroutine pr114883(a, b, c, d, e, f, g, h, o)
real(8) :: c(1011), d(1011), e(0:1011)
real(8) :: p, q, f, r, g(1011), h(1011), b, bar
integer :: o(100), a, t, u
p = 0.0_8
r = bar()
u = 1
do i = 1,a
do k = 1,1011
km1 = max0(k-1,1)
h(k) = c(k) * e(k-1) * d(km1)
f = g(k) + h(k)
if(f.gt.1.e-6)then
p = min(p,r)
endif
end do
q = 0.9_8 * p
t = integer(b/q + 1)
if(t>100)then
u = t
endif
o(u) = o(u) + 1
end do
end subroutine pr114883
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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From: jakub at gcc dot gnu.org @ 2024-04-29 17:50 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Just changing the min in the testcase to max results on ICE with IFN_COND_MAX.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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From: jakub at gcc dot gnu.org @ 2024-04-29 18:44 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 58073
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58073&action=edit
gcc14-pr114883.patch
Full untested patch.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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From: liuhongt at gcc dot gnu.org @ 2024-04-30 0:43 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #10 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #9)
> Created attachment 58073 [details]
> gcc14-pr114883.patch
>
> Full untested patch.
This will fix 521.wrf_r ICE, and pass runtime validation.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2024-04-30 8:12 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #11 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:
https://gcc.gnu.org/g:04ef92a62af3a815b86a2037267cd4e747ae225c
commit r15-64-g04ef92a62af3a815b86a2037267cd4e747ae225c
Author: Jakub Jelinek <jakub@redhat.com>
Date: Tue Apr 30 10:11:47 2024 +0200
vect: Adjust vect_transform_reduction assertion [PR114883]
The assertion doesn't allow IFN_COND_MIN/IFN_COND_MAX, which are
commutative conditional binary operations like ADD/MUL/AND/IOR/XOR,
and can be handled just fine.
In particular, we emit
vminpd %zmm3, %zmm5, %zmm0{%k2}
vminpd %zmm0, %zmm3, %zmm5{%k1}
and
vmaxpd %zmm3, %zmm5, %zmm0{%k2}
vmaxpd %zmm0, %zmm3, %zmm5{%k1}
in the vectorized loops of the first and second subroutine.
2024-04-30 Jakub Jelinek <jakub@redhat.com>
Hongtao Liu <hongtao.liu@intel.com>
PR tree-optimization/114883
* tree-vect-loop.cc (vect_transform_reduction): Allow IFN_COND_MIN
and
IFN_COND_MAX in the assert.
* gfortran.dg/pr114883.f90: New test.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2024-04-30 8:16 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-14 branch has been updated by Jakub Jelinek
<jakub@gcc.gnu.org>:
https://gcc.gnu.org/g:a795a7b67027bc976a353b5fa927ac8c5f29347d
commit r14-10152-ga795a7b67027bc976a353b5fa927ac8c5f29347d
Author: Jakub Jelinek <jakub@redhat.com>
Date: Tue Apr 30 10:11:47 2024 +0200
vect: Adjust vect_transform_reduction assertion [PR114883]
The assertion doesn't allow IFN_COND_MIN/IFN_COND_MAX, which are
commutative conditional binary operations like ADD/MUL/AND/IOR/XOR,
and can be handled just fine.
In particular, we emit
vminpd %zmm3, %zmm5, %zmm0{%k2}
vminpd %zmm0, %zmm3, %zmm5{%k1}
and
vmaxpd %zmm3, %zmm5, %zmm0{%k2}
vmaxpd %zmm0, %zmm3, %zmm5{%k1}
in the vectorized loops of the first and second subroutine.
2024-04-30 Jakub Jelinek <jakub@redhat.com>
Hongtao Liu <hongtao.liu@intel.com>
PR tree-optimization/114883
* tree-vect-loop.cc (vect_transform_reduction): Allow IFN_COND_MIN
and
IFN_COND_MAX in the assert.
* gfortran.dg/pr114883.f90: New test.
(cherry picked from commit 04ef92a62af3a815b86a2037267cd4e747ae225c)
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug tree-optimization/114883] [14/15 Regression] 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap
2024-04-29 4:42 [Bug tree-optimization/114883] New: 521.wrf_r ICE with -O2 -march=sapphirerapids -fvect-cost-model=cheap liuhongt at gcc dot gnu.org
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From: jakub at gcc dot gnu.org @ 2024-04-30 8:16 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114883
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.
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